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using System;
using XenAdmin.Core;
using XenAPI;


namespace XenAdmin.Actions
{
    /// <summary>
    /// Assumes that the sync is being done to commit changed HA settings.
    /// </summary>
    class SyncDatabaseAction : PureAsyncAction
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="pool">May not be null.</param>
        internal SyncDatabaseAction(Pool pool)
            : base(pool.Connection, Messages.SYNCING_DATABASE)
        {
            this.Pool = pool;
        }

        protected override void Run()
        {
            RelatedTask = XenAPI.Pool.async_sync_database(this.Session);
            try
            {
                this.PollToCompletion();
            }
            catch (Failure f)
            {
                if (f.ErrorDescription.Count > 0 && f.ErrorDescription[0] == Failure.HOST_OFFLINE)
                {
                    throw new Exception(String.Format(Messages.HA_SAVE_SETTINGS_FAILED_DEAD_HOSTS, Helpers.GetName(Pool)));
                }
                else
                {
                    throw;
                }
            }

            this.Description = Messages.COMPLETED;
        }
    }
}
